Help i will give you 12 points A toy cost 89 cents. Gian pays $1 dollar bill. which set of coins could be his change?

A. 2 dimes and 9 pennies
B. 2 nickels and 1 dime
C. 1 nickel and 1 penny
D.1 dime and 1 penny

What is sin 7x/4 ? i need on this urgent trig

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?